V-Lab
Jinbei Automotive Co Ltd GJR-GARCH Volatility Analysis
Volatility prediction for Tuesday, September 15th, 2026
1 Day
46.62%
increased by 13.05%
1 Week
46.91%
increased by 13.34%
1 Month
47.80%
increased by 14.23%
Analysis last updated: Wednesday, September 16, 2026 at 03:23 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jul 24, 1992 to Sep 14, 2026Model Insight
Volatility shocks decay with a half-life of 18 trading days, meaning a shock loses half its impact after approximately 18 days.
σ
GJR-GARCH Model
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Shock decay: Shocks decay with a 18-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.3865 | 5.38*** |
| αARCH | 0.1051 | 4.33*** |
| βGARCH | 0.8633 | 47.77*** |
| γleverage | -0.0134 | -0.41 |
0.962
Persistence18d
Half-lifeσ
GJR-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.3865 | 5.38*** |
α ARCH Response to squared shocks | 0.1051 | 4.33*** |
β GARCH Volatility persistence | 0.8633 | 47.77*** |
γ leverage Additional response to negative shocks | -0.0134 | -0.41 |
Persistence:
0.962
Half-life:
18 days
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